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Posted by: Raymond McDougall on 09.23.2017 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I’ve added some great new spodumene crystals in this Afghanistan Spodumene Update (click here). These spodumene crystals are from a 2017 pocket that produced colour-zoned (lilac/pink – pale green – colourless) crystals, along with some specimens that were purely lilac/pink and some that had no such hues at all. Although spodumene crystals are often etched or poorly defined, this pocket included sharp well-formed crystals and relatively low incidence of etching/dissolution features.

In the relevant specimen descriptions in this update, I’ve included an important Note About Colour Stability. The light green colour in these spodumene crystals fades to colourless upon exposure to daylight. If exposed in direct sun, this will happen relatively quickly. If exposed to indirect daylight indoors, such as in a display cabinet, the green will fade over a longer period of time. If one keeps a specimen fully protected from daylight, the green may be preserved, although it’s anyone’s guess – over a period of months, I have seen no degradation to specimens kept in drawers (with no daylight exposure). If kept out in a cabinet, a coloured specimen from this find should be considered a colour-zoned kunzite, from pink to colourless. In general, like many other minerals, the colour in all spodumene is best preserved if it is protected from light.

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 6.3 cm

Spodumene, var. Kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, var. Kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 7.8 cm

Twinned  crystal of spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Twinned crystal of spodumene, var. kunzite, Paprok, Kamdesh District,
Nuristan Province, Afghanistan – 4.3 cm crystal

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 7.4 cm

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 5.0 cm

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 5.5 cm

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 4.2 cm

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 7.0 cm

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 3.8 cm

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 3.8 cm

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 2.6 cm

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan

Spodumene, var. kunzite, Paprok, Kamdesh District, Nuristan Province, Afghanistan – 2.9 cm

Posted by: Raymond McDougall on 09.27.2016 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve posted some excellent new specimens in this Brazil Update (click here). This update is a mix of great pieces from various finds and localities. Among them, there is a superb spessartine from the 2003 pocket at the Navegadora Mine and a gorgeous rutile star with glass-clear pale smoky quartz crystals over it. This update features some exceptionally fine crystals of rutile var struverite-ilmenorutile, and it also includes sharp crystals of chrysoberyl var. alexandrite. Many more fine specimens, including excellent crystals of montebrasite, brazilianite, spodumene var. kunzite, muscovite (including “star”-twinned crystals), rutilated quartz and sceptered quartz.

Spessartine Garnet, Navegadora Mine, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil

 Spessartine Garnet, Navegadora Mine, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil – 6 cm

Quartz, Rutile, Hematite, Novo Horizonte, Bahia, Brazil

Quartz on a Rutile-Hematite star, Novo Horizonte, Bahia, Brazil
Field of view 6 cm

 Rutile, var. Struverite-Ilmenorutile, Golconda District, Governador Valadares, Minas Gerais, BrazilRutile, var. Struverite-Ilmenorutile, Golconda District, Governador Valadares, Minas Gerais, Brazil – 4.1 cm

Rutile, var. Struverite-Ilmenorutile, Santa Rosa Mine, Itambacuri, Doce Valley, Minas Gerais, Brazil

Rutile, var. Struverite-Ilmenorutile, Santa Rosa Mine, Itambacuri, Doce Valley, Minas Gerais, Brazil – 3.1 cm

Rutile, var. Struverite-Ilmenorutile, Santa Rosa Mine, Itambacuri, Doce Valley, Minas Gerais, Brazil

Rutile, var. Struverite-Ilmenorutile, Santa Rosa Mine, Itambacuri, Doce Valley, Minas Gerais, Brazil – 2.5 cm

Rutile, Diamantina, Jequitinhonha Valley, Minas Gerais, Brazil

Rutile, Diamantina, Jequitinhonha Valley, Minas Gerais, Brazil – 3.8 cm

Montebrasite, Telirio Claim, Linoplois, Divino das Laranjeiras, Minas Gerais, Brazil

Montebrasite, Telirio Claim, Linoplois, Divino das Laranjeiras, Minas Gerais, Brazil
Field of view 3.3 cm

Brazilianite, Telirio Claim, Linoplois, Divino das Laranjeiras, Brazil

Brazilianite, Telirio Claim, Linoplois, Divino das Laranjeiras, Brazil – 4.2 cm

Chrysoberyl var. Alexandrite, Carnaíba District, Pindobaçu, Bahia, Brazil

Chrysoberyl var. Alexandrite, Carnaíba District, Pindobaçu, Bahia, Brazil – 1.5 cm twin

Chrysoberyl var. Alexandrite, Carnaíba District, Pindobaçu, Bahia, Brazil

Chrysoberyl var. Alexandrite, Carnaíba District, Pindobaçu, Bahia, Brazil – 4.7 cm

Chrysoberyl (Twinned) on Muscovite, Rio das Pratinhas, Arataca, Bahia, Brazil

Chrysoberyl (Twinned) on Muscovite, Rio das Pratinhas, Arataca, Bahia, Brazil – 3.1 cm

Spodumene var. Kunzite, Urucum Mine, Galilea, Minas Gerais, Brazil

Spodumene var. Kunzite, Urucum Mine, Galilea, Minas Gerais, Brazil – 6.9 cm

Muscovite ("Star Mica"), Jenipapo Mine, Itinga, Minas Gerais, Brazil

Muscovite (“Star Mica”), Jenipapo Mine, Itinga, Minas Gerais, Brazil – 6.6 cm

Rutilated Quartz, Novo Horizonte, Bahia, Brazil

Rutilated Quartz, Novo Horizonte, Bahia, Brazil – 9.4 cm

Quartz, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil

Quartz, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil – 7.0 cm

Quartz, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil

Quartz, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil – 7.1 cm